Maximum reasonable temperature for a P2

[doublec16]

I have my P2 350 running at 392 MHz with a 112MHz bus. The current temperature of the CPU is just over 30C. What is the maximum operating temperature for this CPU? Would it be safe to increase the FSB any more?

[OpenFriday]

Well by only increasing the FSB you dont heat anything up. It is only when you up the voltage that heat is a factor. 30C is perfectly reasonable. Id try to keep it under 40C, but thats kind of odd for me to say as i am running @ 54C (for now) and have been for 7 months. If your ram can handle the FSB and is rock stable go for it. Does your mobo or slotket have vcore adjustments?

[doublec16]

The CPU is about 8 degrees hotter than when I had the FSB at 100 MHz, and I don't think I will try adjusting the voltage, as I don't want to damage anything.

[OpenFriday]

well for some reason the temp went up your temp is still well within range. Id say nething under 40C and your sitting pretty. 50C and id start to pay close attention.

[[OC]_SR20DE]

I heard that the Intel P class chips can handle maximum of around 80C, Now, that's in general.. not for overclocking. For P3s, many of them should run at 30C idle with factory HSF and not overclocked.

The P2s do run little hotter and has higher voltage level I think.. and at your overclocked speed, it is fine running at 30+C to upper 30ish C at idle. As long as if your system runs stable at the temperature of 40C - 50C for example, I wouldn't worry.

[doublec16]

Oh yeah I forgot to mention. The CPU temperature is 32C at full load. It's in the mid 20's with no load, and that's with the FSB at 112. I guess it's safe to increase the FSB another notch.

[OpenFriday]

Id definitly say go for it. Those temps are definitly a-o-k. As long as it remains 100% stable and you go a little at a time you'll have no problems.

[zeisel]

those temps are perfectly reasonable. when my chip is oc'd to 558 i get temps of about 39c idle 46c full load, just make sure you have a good hsf and you dont have to much paste on. oh, im at 2.2v

[AoD]

Well, I know P2's and the first P3's(Katmai) like I have can run extremely hot. And 80C is a max op temp that you really want to avoid. Try to stay below 50C full load if at all possible. You could try going to something like 3.5x126 for 441mhz and see if that runs too hot or unstable. The RAM and the Mobo would probably make more of a problem if it's not rated for above 100mhz unless it's a BX, which I know i440bx's can easily run 133mhz without problems. As you can see in my signature, I have a P3 450@566 without any voltage adjustment. Still at teh stock 2.0v, you shouldn't have to worry about that either. All depends on what works stable and what doesn't. Take a few steps up and 126 FSB or 133 or somewhere around there can be possible but not 100% likely. Just keep bumping up in small steps as you go and keep a good eye on that temperature. Good luck...

-AoD

[Shadow ÒÓ]

OpenFriday -Senior Member (Apr 06, 2001 02:29 p.m.):
Well by only increasing the FSB you dont heat anything up. It is only when you up the voltage that heat is a factor. 30C is perfectly reasonable. Id try to keep it under 40C, but thats kind of odd for me to say as i am running @ 54C (for now) and have been for 7 months. If your ram can handle the FSB and is rock stable go for it. Does your mobo or slotket have vcore adjustments?

not sure why this is wrong, but it is. I've increased the fsb only to receive temp increases of 10 f or so by only going from 133 to 146 or 148. Yea, on occasion, and not in all pc's. Guess since it "thinks" faster.....it generates more heat.

My P II 300 at 338 is running 77 f now.....under full load. That's with that crazy Compaq hs I mentioned in this forum, but my 933 (not oc'd) is running temps of 110 or so and 125 under full load. Runs fine, but I'm ordered an FOP 32 just because it's not worth the risk of losing a $240 processor. Sorry I don't know about those metric numbers...I'm just a dumb American. =)

[AoD]

Well you can certainly heat up a processor buy just boosting the FSB and the actual frequency, not as much as pumping more volts into it but some will actually do a quite a bit of heating up just by frequency rates going sky high. Now pumping a 2.0v chip with 2.2v's can really produce some heat just because it's a higher current than it's designed for. The best way I have ever seen to cool down a processor is to drop it's voltage, I don't care about extreme liquid nitrogen cooling or anything, I don't see the point in a chip I could shatter with a shot glass falling over on it. Water cooling is still a bit over me, though that is my opinion. Overclocking is taking a chip and putting it past its limits that were set by the maker. Just remember heat isn't an issue (usually) with stock clocked chips hehe :)

And shadow, you are not dumb you just are anti-metric. :)

[Shadow ÒÓ]

And shadow, you are not dumb you just are anti-metric. :)

not Anti-metric....just metric illiterate. I have the basics because I was in construction for 16 years.....and my measuring tape had both metric and standard measurements. =)

I know 32 f is 0 c.....and 37 c is 98.6 f......but that's it for that metric system. Oh and yea.....hard lesson learned from Canada....5 quarts there are a gallon here.....and gas is sold by the quart? *shrugs*...that was a long time ago.

[AoD]

:) Shadow. Metric isn't "all" that bad I am Anti-Metric myself! But I know the scales so who cares right?

I just found out that : P 's picture shows the "not displayed" X in IE for me :(

[DocClock aka MadClocker]

Increasing the fsb WILL increase heat, and will also increase performance..I wouldn't worry about your heat generation, as it seems to be under the norm...and you should have no trouble with heat, till you start upping the voltage. Under 50c under full load is comfortable enough...it sounds like you got a good one...is yours an oem? or retail? some oem cpu's of that era were remarked 450's and would run at 4.5x100.
and AOD, I have run my Katmai 450 at 558 at 1.65v
default is 2.0...see if you can drop your volts any...the katmai might not be a very good clocker, but they have been known to run at less than their default volt reliably

[AoD]

I would drop the volts but this damn dirty ape of a Soyo doesn't allow drops in volts. If it wasn't for my ram I would be at 600 or better! I have my own cooling trifan design and heat isn't a problem. So 566@2.0v is where it's gonna stay for now, unless there is some little trick to it. If I could drop the volts, I would be as low as I could go without losing stability. :)

[doublec16]

Well I tried putting the FSB up to 124 and it didn't even show anything on the screen or beep or anything, so I set it back to 112 and it's working fine again.

[AoD]

Maybe that chip or mobo just wont hold any higher than what you've got at 112fsb.

[doublec16]

That is apparently the case, though I have heard that 440BX boards are highly overclockable.

[AoD]

Heck then, I didn't see that it was a 440bx. I have my 440bx at 126mhz and it's perfectly stable and the thing never has problems. Probably just the CPU has hit it's limit then. I know for a fact that the BX will easily hit 133mhz, mines been at 140mhz with no problems so, it's probably the CPU but there is that chance..